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stich3 [128]
3 years ago
11

A system of linear equations is graphed below

Mathematics
1 answer:
Mashcka [7]3 years ago
6 0

Answer: D

Step-by-step explanation: 20,20

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Do f(x)and g(x) have the same y-intercept.
Amanda [17]

Answer:

Hmmmm

Step-by-step explanation:

Let’s see here

4 0
3 years ago
√2 (√45 + √80) can be written in the form a√10 where a is an integer. Find the value of a.
aleksandrvk [35]

Answer:

a = 7

Step-by-step explanation:

Using the rule of radicals

\sqrt{a} × \sqrt{b} ⇔ \sqrt{ab}

Given

\sqrt{2} (\sqrt{45} + \sqrt{80} ) ← distribute parenthesis by \sqrt{2}

= \sqrt{90} + \sqrt{160}

= \sqrt{9(10)} + \sqrt{16(10)}

= \sqrt{9} × \sqrt{10} + (\sqrt{16} × \sqrt{10} )

= 3\sqrt{10} + 4\sqrt{10}

= 7\sqrt{10} → in the form a\sqrt{10}

with a = 7

4 0
3 years ago
Read 2 more answers
The anderson's drove 175 miles in 3 1/2 miles. What is their average driving rate, in miles per hour? At this rate, how many mil
earnstyle [38]

Answer:

50 mph, 450 mi, 73.3 ft/sec

Step-by-step explanation:

Part 1:

Find the unit rate (which here is mph).

 175 mi

------------- = 50 mph

3.5 hrs

Part 2:

In 8.5 hrs, the Andersons can expect to cover (50 mph)(8.5 hr) = 425 mi

Part 3:

50 mph       88 ft/sec

------------ *  ----------------- = 73.33 ft/sec, or 73.3 ft/sec to the nearest tenth.

      1              60 mph

6 0
3 years ago
Find the circumference leave the answer in terms of pi
Sladkaya [172]
C = 3.14 x D or C = 2 x 3.14 x R

So, C = 2 x 3.14 x 20

The answer is 40pi.


3 0
4 years ago
The area of a rectangular wall of a barn is 192 sq. Ft. It's length is 8 ft. Longer than twice it's width. Find the length and w
Novay_Z [31]

Answer: length = 24 ft

Width = 8 ft

Step-by-step explanation:

Let L represent the length of the barn.

Let W represent the width of the barn.

The area of a rectangular wall of a barn is 192 sq. Ft. This means that

LW = 192- - - - - - - - - - - - - - -1

It's length is 8 ft longer than twice it's width. This means that

L = 2W + 8

Substituting L = 2W + 8 into equation 1, it becomes

W(2W + 8) = 192

2W² + 8W = 192

2W² + 8W - 192 = 0

Dividing through by 2, it becomes

W² + 4W - 96 = 0

W² + 12W - 8W - 96 = 0

W(W + 12) - 8(W + 12) = 0

(W - 8)(W + 12) = 0

W = 8 or W = - 12

Since the width cannot be negative, then W = 8

L = 192/W = 192/8

L = 24

6 0
3 years ago
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